IBM System SSL Environment Variables on z/OS

There are some System SSL environment variables related to tracing and debug messages which must be specified before the EMS library is loaded.

Note: Tracing is supported only on z/OS systems.

These environment variables are discussed in the IBM System Secure Sockets Layer programming guide, but a short summary is provided here:

Set the file name (USS only) for raw trace records:
- GSK_TRACE_FILE <trace file name>
- GSK_TRACE <mask> — specify 255 to trace everything
  These two values enable detailed tracing of all GSK calls to a file. The file may subsequently be formatted for viewing using the gsktrace command.
GSK_HW_CRYPTO <crypto mask> — 65535 to enalble all, 0 to disable all hardware cryptographic functions.
GSK_SSL_HW_DETECT_MESSAGE— if set, causes brief messages regarding the state of the installed hardware to be written to stdout when the application is started.